How to Always Display Two Decimal Places in a Number?

How to Format Numbers to Always Display 2 Decimal Places

To format numbers to always display two decimal places, rounding where applicable, we can use the following formula:

(Math.round(num * 100) / 100).toFixed(2);

This formula first multiplies the number by 100, rounding the result to the nearest integer. It then divides the rounded result by 100, effectively reverting the multiplication. Finally, it uses the toFixed(2) method to format the number to two decimal places.

Example:

let num = 1.345;
let formattedNum = (Math.round(num * 100) / 100).toFixed(2);
console.log(formattedNum); // Output: 1.35

This formula ensures that numbers are always displayed with two decimal places, regardless of the original number. It rounds the number to the nearest hundredth, so that even numbers like 1 will be formatted as "1.00."

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